<template>
  <a-layout>
    <a-layout-sider width="200" style="background: #fff">
      <a-menu
              mode="inline"
              v-model:selectedKeys="selectedKeys2"
              v-model:openKeys="openKeys"
              :style="{ height: '100%', borderRight: 0 }"
              @click="handleClick"
      >
        <a-menu-item key="welcome">
          <HomeOutlined/>
          <span>首页</span>
        </a-menu-item>
        <a-sub-menu v-for="item in level1" :key="item.id">
          <template v-slot:title>
            <span><user-outlined/>{{ item.name }}</span>
          </template>
          <a-menu-item v-for="child in item.children" :key="child.id">
            <AppstoreOutlined/>
            <span>{{ child.name }}</span>
          </a-menu-item>
        </a-sub-menu>
      </a-menu>
    </a-layout-sider>
    <a-layout-content
            :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <div class="welcome" v-show="isShowWelcome">
        <h1>欢迎使用！</h1>
      </div>
      <a-list v-show="!isShowWelcome" item-layout="vertical" size="large" :grid="{ gutter: 20, column: 3 }"
              :data-source="ebooks">
        <template #renderItem="{ item }">
          <a-list-item key="item.name">
            <template #actions>
          <span>
            <component v-bind:is="'FileOutlined'" style="margin-right: 8px"/>
            {{ item.docCount }}
          </span>
              <span>
            <component v-bind:is="'UserOutlined'" style="margin-right: 8px"/>
            {{ item.viewCount }}
          </span>
              <span>
            <component v-bind:is="'LikeOutlined'" style="margin-right: 8px"/>
            {{ item.voteCount }}
          </span>

            </template>
            <a-list-item-meta :description="item.description">
              <template #title>
                <router-link :to="'/doc?ebookId=' + item.id">
                  {{ item.name }}
                </router-link>
              </template>
              <template #avatar>
                <a-avatar :src="item.cover"/>
              </template>
            </a-list-item-meta>
          </a-list-item>
        </template>
      </a-list>
    </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
  import {defineComponent, onMounted, ref, reactive, toRef} from 'vue';
  import axios from "axios";
  import {message} from "ant-design-vue";
  import {Tool} from "@/util/tool";


  export default defineComponent({
    name: 'HomeView',
    setup() {
      const ebooks = ref();
      const ebooks1 = reactive({books: []});

      const level1 = ref();
      let categorys: any;
      /**
       * 查询所有分类
       */
      const handleQueryCategory = () => {
        axios.get("/category/all").then((response) => {
          const data = response.data;
          if (data.success) {
            categorys = data.content;
            console.log("原始数组：", categorys);

            level1.value = [];
            level1.value = Tool.array2Tree(categorys, 0);
            console.log("树形结构：", level1.value);
          } else {
            message.error(data.message);
          }
        });
      };

      const isShowWelcome = ref(true);
      let categoryId2 = 0;


      const handleQueryEbook = () => {
        axios.get("/ebook/list", {
          params: {
            page: 1,
            size: 1000,
            categoryId2: categoryId2
          }
        }).then((response) => {
          const data = response.data;
          ebooks.value = data.content.list;
        });
      }

      const handleClick = (value: any) => {
        // console.log("menu click", value);
        if (value.key === 'welcome') {
          isShowWelcome.value = true;
        } else {
          categoryId2 = value.key;
          isShowWelcome.value = false;
          handleQueryEbook();
        }
        // isShowWelcome.value = value.key === 'welcome';
      };


      onMounted(() => {
        handleQueryCategory();
      });


      return {
        ebooks,
        ebooks2: toRef(ebooks1, "books"),
        pagination: {
          onChange: (page: any) => {
            console.log(page);
          },
          pageSize: 3,
        },
        // actions: [
        //   {type: 'StarOutlined', text: '156'},
        //   {type: 'LikeOutlined', text: '156'},
        //   {type: 'MessageOutlined', text: '2'},
        //   {}
        // ],

        handleClick,
        level1,
        isShowWelcome
      }
    }
  });
</script>

<style scoped>
  .ant-avatar {
    width: 50px;
    margin: 5px 0;
    line-height: 50px;
    height: 50px;
    border-radius: 8%;
  }
</style>
